I have always loved the size to power ratio of the xj. That being said, I've always wanted more power.

Now that I've got y'all reading, here's my question; I am replacing the front coil springs on my 2001 xj. Is the bump stop extending down from the upper spring mount removable or not? It does not seem to be bolted in, and just by inspection I can't see how it is attached. I intend to compress the coil springs in order to remove and install them so this added distance makes a significant difference to me.

Sorry to troll all of you about the 650 horse xj. That would be pretty sweet though. I'm thinking a nice, fat LS7. Just shoehorn that bad boy in there, with a nice custom hood.

 

first... http://www.jpmagazine.com/techarticl...t_2/index.html


And second.. Its not really necessary to remove the bumpstop, you need to jack up one side of the axle so the other side can droop. And make sure to disconnect the sway bar. I've put 3" springs this way with no spring compressor.

 

If you like XJ's and power check out this :



The guy takes it to Adams Jeep Jam in Aberdeen Md every year, He races it at Cecil co dragway In person it is insane and the sound of the exhaust makes the ground shake, And Yes That is a 9 sec 1/4 mile !

 

Okay here is my problem with just letting the axle droop, I don't wan't to remove any more bolts than necessary. I'm doing this in a friends driveway and I don't want to leave my unusable car sitting around for a week while they figure out how to work around the inconvenience. I would rather compress than unbolt. So not going that route, is it possible to remove that bumpstop?

 

Sure. Use a sawz-all or angle grinder or torch.

Sounds like a tough situation. Usually I figure it will take twice the expected time to complete the task, never know what could go wrong. Bolts seize. Stuff breaks.

That would make me nervous.

 

Everything is removable with a sawzall

 

I think your 2001 bumpstops will be like my 99, the rubber is just pressed into the cup, and I think the cup is welded to the upper coil bucket...not removable.
I've swapped many XJ coils springs I always use an AutoZone loan-a-tool spring compressor. I leave most everything bolted up, completely remove shocks, unbolt the sway bar ends, axle side of the steering stabilizer and tie rod ends (bungee them up sice the dralink is still attached..
Jack the front end up, put the body on jackstands, let the front end droop. Use a floor jack under the axleside you're working on to compress the spring, then put the spring compressor on, lower the floor jack, you might not even have to crank the spring compressors.
When reinstalling, let the axle droop, slide the spring in there, use the compressors to fit them in, then floor jack the axle up to unload the compressors.
A lot of people I know unbolt the track bar, but it never seems to get me enough droop to not use the spring compressors.

 

So it sounds like the bumpstop is removable if it feels like it (typical jeep), it is most likely possible to remove some front suspension bolts and not have to use a spring compressor (if the bolts feel like being removed, typical jeep). And sometimes even with the axle dropped as low as it can go, you still have to use a compressor. I.e. start taking a wrench to it, and figure it the F*** out.

 

Ive never had to use a spring compressor until 4.5-5" coils with extended bumpstops. I only unbolted the shocks, passenger side of steering and track bar (maybe calipers too). Helps you jack the opposite side up and push the work side down, a buddy and pry bar helps alot. When done, bolt everything up except the trackbar, put it back on wheels and use the steering to align the trackbar. Should take no longer than a few hrs and a few beers

 

You say you're replacing the springs, are your new springs stock? If you remove the shocks you should be able to swing the axle down far enough to swap the springs (probably will need to remove the drag link)